Local Generation of Magnetosonic Waves by Ring Beam Hot Protons in the Martian Ionosphere
Sign Up to like & getrecommendations! Published in 2023 at "Geophysical Research Letters"
DOI: 10.1029/2023gl102911
Abstract: Magnetosonic (MS) waves are dominant plasma waves causing severe Martian ionospheric erosion. They are generally considered to originate upstream of Martian bow shock with frequencies near the upstream proton gyrofrequency. However, whether MS waves can… read more here.
Keywords: beam hot; ring beam; martian ionosphere; hot protons ... See more keywords
Tuning the resolution and depth of field of a lens using an adjustable ring beam illumination.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.389353
Abstract: A pair of axicons with an adjustable separation between them is used to generate a variable diameter ring beam with high efficiency. This beam illuminates a lens to produce quasi-diffraction-free beams with a tunable spot… read more here.
Keywords: ring beam; depth field; tuning resolution; resolution depth ... See more keywords
Force–Displacement Hysteresis Model of Exterior PCRB Joints under Low Cyclic Loading
Sign Up to like & getrecommendations! Published in 2023 at "Polymers"
DOI: 10.3390/polym15092008
Abstract: The seismic behaviors of exterior polyvinyl chloride–carbon-fiber-reinforced polymer (PVC–CFRP) confined concrete (PCCC) column-ring-beam joints (hereafter referred to as exterior PCRB joints) under low cyclic loading were investigated. A total of 11 specimens were tested to… read more here.
Keywords: ring beam; beam; ratio; exterior pcrb ... See more keywords